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POHow to open new terminal through C program in linux
 

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  1. POHow to open new terminal through C program in linux
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    <p>I have written client-sever code where I have many connections, let say each node represents different process on same machine. And to do that I have obviously use fork().</p> <p>But now problem is that all results get displayed on same terminal. I want to know is there any way such that after each <code>fork()</code> or process creation new terminal gets opened and all results get displayed for that process on particular terminal.</p> <p>P.S: I have tried <code>system("gnome-terminal")</code> but it just opens new terminal but all results get displayed again on same terminal only. All new terminals are just opens and remain blank without any result.</p> <p>Also I have gone through this link <a href="https://stackoverflow.com/questions/3445645/how-to-invoke-another-terminal-for-output-programmatically-in-c-in-linux">How to invoke another terminal for output programmatically in C in Linux</a> but I don't want to run my program with parameters or whatever. Its should be just like <code>./test</code></p> <p>Here is my code:-</p> <pre><code>for(int i=0;i&lt;node-1;i++) { n_number++; usleep(5000); child_pid[i]=fork(); if(!child_pid[i]) { system("gnome-terminal"); file_scan(); connection(); exit(0); } if(child_pid[i]&lt;0) printf("Error Process %d cannot be created",i); } for(int i=0;i&lt;node-1;i++) wait(&amp;status); </code></pre> <p>So basically what I want is for each process there should be new terminal displaying only that process information or result.</p> <p>What I exactly want:</p> <ul> <li>After fork() I have some data related to say process 1 then I want its output to one terminal</li> <li>Same goes with each process. So its like if I have 3 process then there must be 3 terminals and each must display process related data only. </li> </ul> <p>I know it can be doable using IPC(Inter Process Communication) but is there any other way around? I mean just 2-3 commands or so? Because I do not want to invest too much in coding this part.</p> <p>Thanks in advance!!!</p>
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    1. COHow is the original process going to arrange to write to the terminal? What process in the new terminal is going display the information you write?
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    2. CO@JonathanLeffler I wish I remembered file descriptors and streams more, but couldn't you theoretically open a new terminal and redirect `stdout` to whatever file descriptor exists for that terminal? Hm I think I am misunderstanding terminals...
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    3. COMy suspicion/expectation is that in the absence of anything else, the terminal is set up with its own shell, and with its own (surprise) terminal (`/dev/ttyXXX` or `/dev/ptyXXX`). So, some careful plumbing will likely be necessary so that the input for the terminal window comes from your process that wants to write to it, and you'll need a program (maybe `cat`?) to read that input and write to the terminal window. I've not done it, so I don't know what the tricks are. (Have you tried `man gnome-terminal`?)
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